body,
h1,
h2,
ul,
li,
ol,
p {
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
  color: #333;
}
/* img的 vertical-align重置*/
img {
  display: block;
}
ul,
li,
ol {
  list-style: none;
}
